Finding the Fourth Proportional to 8,809,868.20, 13,211,691.90 and 3,130,277.80
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Solution
The fourth proportional to 8,809,868.20, 13,211,691.90 and 3,130,277.80 is: 4,694,311.53
Step by Step Solution
- Step 1: Write the proportion equation
8,809,868.20 : 13,211,691.90 = 3,130,277.80 : x - Step 2: Convert to fraction form
8,809,868.20/13,211,691.90 = 3,130,277.80/x - Step 3: Cross multiply
8,809,868.20x = 13,211,691.90 × 3,130,277.80 - Step 4: Simplify right side
8,809,868.20x = 41,356,265,855,009.82 - Step 5: Solve for x
x = 41,356,265,855,009.82/8,809,868.20 - Step 6: Final answer
x = 4,694,311.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.